Door bolt



Jule 16, 1925.

. 1,542,468 W. A. MUELLER DooR Bom* Filed Aux. 22,- 2524 locking device adapted rggbe secured fte yloivin'g 'is a specification;

cated, `which is si'rnple and substitut Patented June 16, 1925.

fiippiesfwn meal-August 22, 1924. serial 1ro. raao.

'To all/whom it 'finzg/ cowoemy l i .Be "it yknown 'that WILL'AM LER', a citizen rofthe UnitedStates, residing at Washington in 'the District df Cdlumbia 'have invented `'certainf'ner'v "Land yuseful Iniuprove'm'ents lin Door Bolts', of whichfthe `f`1- The present inventi1 i1 [relates 'te locking devices, 'more 'especially 'designed Lfpr locking-swinging doors'adthevlike, and airs couprovide fa 'neve1adimpr0ved 'device eff I r one edge of the plate 15 additional means 'are 'provided to aid in seci'uind thaekind, havingfar fnfvatle head1-creen which can be Inovedn the pathof tlie door when in a c'los'ed position forulclting saine. Anotherobjectis the provision ofa 'nove'l @door frame, with the t 1t thefef parme-m57 'lying infa vertical 'position 'and out "of e'n- 'gagement with the dr, and "the device teing se @enseaba 'that the tea may, be moved and held Ein a hoii'nta'l position when it is desired to lock the door'.

It is also ,an object of the inventionfto 'pfff-)vide amena-g device tf thejkind indi,- fal 'in onl's uction, which v"can be "irland aot'iired economically, and 'which will vbe thoroughly efficient and practical yin ilse.

With the fo'eir'ad oth l Y v'iegvv', which wi l" 'e "Y Ithepd'evscfripvtion piovcce'ddthe v41 tioiinresi ,smifi the cdr'ist'r'lsfctfih andarrangenelt "a lielein lfte'r A.describedfand fcl'ai'ime'd lt 'undeistodtliat changes can the lscope of what is claimed Vpartwg iox'ngr l'f Tt er objeta 11;

"inventibfi is illus ateidrin tle accor'nl panying drawings, iwherein: p m

Figure 1 is a fraginentarygjjspec'tve View of a door franef'sli'tvi'fg hij inproved device applied, y

Figure 2 is a similar view showing the device in a locked position and in engagement with a door,

Figure 3's a horizontal section taken on line 3-3 of FigureQ,

Figure 4 is a vertical section taken on line 4-4 of Figure 3,

Figure 5 is a rear perspective view showing n1 improved device removed from the door rame, and

Figure 6 is a rear perspective view of the door plate.

Referring to the drawings, 10 indicates the usual door frame, having the abutment 11 thereon for stopping the door 12 when 'the" fplate, and

inv a isd pension, said rrafnejhaving en the 'sides vtl'eieo'f, the usii'alffacin'g vstrips 13,. allvof Ytl'i'e above jine'iltioned constriictiii 'beingthe saine which is now ycommonly 'in Attached 'to the inner face 6ftlie d'r `frare 10, as clearly shown in Figure 1`, I providey the plate 15E yof 'ni'yl'improve'd lk di "device, said plate havin-g conn-refering openings 16 therein rto fperini't 'screws "17 or 'the like, to be inserted,therethrough K Y n y plate 15 to tlefraine, which consists' of apai'r of 'shaped 'prongs 18 Vbent ,froth being so arranged that "dit sarnfe may be forced into the fra ne T0' i At `:the edge of the plate 15 'cpp 'i that where the prongsu18care arr p provided Ia U-'sliaped por'tin 1'9', 'ivh' h celives the locking l 'Sgde'sbf fsaid -"shaped portion have openbomo. ril/ewa param f in s therein, in which the Ap'psite ends of Y D V-.H...f ist z ame i 'cf Muff, *nu by 'a screw passing through the kopening theleinand the prongsv 26 thereon being Y as infettare@ in the trawl" `-gs), die racing serp., 13 is @dem Slightly, we s? te ,pre-venete@ strip 'fri-rfi aepfaag-eish cases, as so'ie facing strips 'not exe/tid `giving a neat appearance, and preventing anyones clothes from being caught on same,

and also that the bolt 20 extends slightly above the U-shaped member so that the same may be conveniently engagedv when it is desired to lock the door.

In operation, the bolt 2O normally lies in a vertical position, as indicated in Figure l, and when it is desired to lock the door in a closed position, the bolt is moved slightly upwardly until the pin 21 is in the outer end of the slot 22, then the bolt can be swung to a horizontal position and slid into the opening 23 in the U-shaped portion, which will prevent Yfurther swinging movement of said bolt. Then in this position the bolt engages the plate 2st on the door, extending into the path thereof,'thus preventing` the opening` of said door. Should it be attempted to force the lock, the same could not be ldetached from the frame` as the plate l5 would engage the edge el the door and prevent the plate from being completely forced from said frame.

The device is applicable to doors swinging from either side et the door trame, as the bolt can extend in either direction in the Ueshaped portion, to which the same is attached, thus eliminating the necessity of constructing two different types ot locking devices.

Having thus described the invention, what is claimed as new is:

l. A locking device in combination with a door trame and door, comprising a U- shaped portion, a plate attached to the outer end of one leg of said U-shaped portion and extending at right angles therefrom, said plate secured to the inner face of said door frame, a bolt received in said U-shaped portion, and means for supporting said bolt either in or out of the path of said door.

2. In combination with a door frame and door, of a locking device, comprising` an attaching plate adapted to be secured to the inner face of said door Frame, a U-shaped portion formed on one end of said plate, a pin extending across said U-shaped portion and having its outer ends securedy to the parallel sides of said U-shaped portion, a locking bolt received in said U-shaped portion and having` a slot therein for receiving said pin, said U-shaped portion having an opening in the bight portion thereot1 `tor receiving one end et said locking bolt when the same is in a horizontal position and in the path of said door.

In combination with a door 'trame and door, of a locking device, comprising an attaching plate adapted to be secured to the inner face of said door frame, a U-shaped portion formed on one end of said plate, a pin extending across said U-shaped portion and having its outer ends secured to the parallel sides ot said U-shaped portion, a locking bolt received in said U-shaped portion and having a slot therein for receiving said pin, said U-shaped portion having an opening in the bight portion thereof for receiving one end of said locking bolt when the same is in a horizontal position and in the path of said door, and a plate attached to said door for engaging said bolt when the same is in alocked position.

Ll. A door locking device comprising a plate having a U-shaped portion provided at its inner wall and at a point between its ends with an opening, a pin supported by the side walls of the U-shaped portion and disposed transversely across the said opening at a point midway between the upper and lower edges thereof, and a bolt having a slot which receives the pin, said bolt being adapted to be snugly received in said opening.

A locking` device comprising a plate having a U-shaped portion provided at its inner wall with an opening, a pin supported in the side walls of the U-shaped portion and disposed transversely across said opening at a point midway between the upper and lower edges thereof, and a bolt adapted to tit snugly in the U-shaped portion and having a slot which receives the pin7 the said bolt having an end portion adapted to be snugly received in theV opening of the U- shaped portion.

In testimony whereof, I have aliixed in v signature in the presence ot two witnesses.

VILLIAM A. MUELLER. lVitnesses K. IVILDENSTEINER, M. BROWN. 

